Lubricating-cup



(ModeL) B. MERRILL. LUBRIGATING CUP.

Patented Sept. 23, 1884.

UNITED STATES 'rnoMAs n. MERRILL,

PATENT OFFICE.

or PORTLAND, Mame.

LUBRlCATlNG-CUP.

SPECIFICATION forming part of-Letters Patent No. 305,460, dated September 23, 1884.

Application filed June 28, ism. ('Mollel.)

To all whom it may concern.-

Be it known that I, THOMAS B. MERRILL, of Portland, in the county of Cumberland and State of Maine, have invented certain new and useful Improvements in Lubricating- Oups; and I do hereby declare that the following isa full, clear, and exact description of the inyention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a the cap.

part of this specification.

Figure 1 is a side sectional elevation. Fig.

2 is a plan showing the spiral grooves in the outlet of the lubricator. Fig. 3 is a side sectional elevationshowing a hinged cover to Same letters showlike parts" My inyention relates to liibricators;

My improvement consists of two partsthe body wand the cap I). The body is distinguished from all other lubricators by having the conical hollow interior a, which,- as is manifest fronrthe drawings, is of the largest diameter at the top, and slopes or tapers uniformly down to the bottom end, d. The advantaged secure by this arrangement is that thegrease or lubricating compound is more readily and easily forced and discharged from the hollow of the body.

Lubricating-cups are made in which the hollow has a fiat or horizontal bottom inside, with an aperture or outlet in the center thereof. Now, inasmuch as the grease or lubricating compound is forced out of the cup by a vertical pressuue on thetop of the grease, it is plain that considerable force is needed to make all of the grease, especially the last portions of it, move along the surface of the horizontal bottom of the aperture by pushing or pressing down on it. the advantage of my conical hollow will be readily perceived. All the lubricating compound in the conical hollow is easily forced down through the cup, as is required for use. To further facilitate this operation, I make the cap b of a shape corresponding to the conical hollow of the body; This is illus- From this remark trated in thedrawings. The point 0 has a tendency to enter into the narrowing part of the conical hollow as the cap is screwed down body is, on its outer periphery, provided with a screw-thread fitting with the screw-thread on theinner periphery of the cap I), The cap is screwed downwardly in the common wayto force out the lubricating compound, as required for use. conical hollow I form spiral'grooves or channelsf. These are also to facilitate the discharge of the grease. Turning the cap to force tion to the contents. Thus the helical grooves, continuing and more readily allowing of such motion, permit of the outflow of the grease be put either into the low body furnished witha screw-thread on its outer periphery with a screw-cap working as described. I

\Vhat I do claim as my invention, and desire to secure by Letters Patent of the United States. is- J, p

1. The lhbrieatingcup as described, having the conical or tapering hollow within the .body thereof, in combination with ascrewcap, the same furnished with a thread to match the thread cut on the outer periphery of the body, as herein set forth.

2. The 'eonical hollow of the lubricating cup herein set forth, when furnished with the spiral grooves or channels, as specified.

3, The lubricating-cup as herein specified,

to force out the lubricating compound. The

On the inside of the more easily. To fill this lubricating-cup, the. cap I; must be removed in the ordinary way,

I do not claim the combination of the 1101- out the grease tends to impart a rotary 1110- having the cap I), shaped as illustrated. and

enting compound.

set forth, sothab i]; will have the poiiiif to In te$bimonyYthaflI claim tho foregoing as enter the hollow of the body as tho cap -ismy QwnI afiix mysignatm'e'in presence oftwo' screwed downwardly Io force out the. 1ubriwitnesses. l

, V THOMAS B. MERRILL;

4. A lubricatiugcup havingth e liinged cop, '7 1 ;Wi t11 es Se s:

'- as hei'oin sob forth and described; the flpnge R KERRIGAN, I

j, and catch or slag-pi, as herein seq fortgh M, SYLVESTER. 

